Home / 1,420,012,021.71-2,130,018,051.05-384,872,902.67

Finding the Fourth Proportional to 1,420,012,021.71, 2,130,018,051.05 and 384,872,902.67

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Solution

The fourth proportional to 1,420,012,021.71, 2,130,018,051.05 and 384,872,902.67 is: 577,309,359.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,012,021.71 : 2,130,018,051.05 = 384,872,902.67 : x
  2. Step 2: Convert to fraction form
    1,420,012,021.71/2,130,018,051.05 = 384,872,902.67/x
  3. Step 3: Cross multiply
    1,420,012,021.71x = 2,130,018,051.05 × 384,872,902.67
  4. Step 4: Simplify right side
    1,420,012,021.71x = 819,786,230,039,963,776
  5. Step 5: Solve for x
    x = 819,786,230,039,963,776/1,420,012,021.71
  6. Step 6: Final answer
    x = 577,309,359.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.